The young host sat with his visitors till nearly midnight: and when, on the following morning, Martina first greeted her niece--who looked peacefully happy though somewhat tired--she was able to tell her that the two men had already gone across the Nile, and, she hoped, settled everything with the Arab governor. Great was her disappointment when presently Justinus and Orion came back to say that Amru, instead of returning to Fostat from the review at Heliopolis, had gone straight to Alexandria. He had engagements there for a few days, and would then start for Medina. The senator saw nothing for it but to follow him up, and Orion volunteered to accompany him. A faint attempt on Heliodora's part to detain him met with a decisive, nay, stern refusal. This journey was indeed sheer flight from his own weakness and from the beautiful creature who could never be anything to him. Early in the day he had found time to write to Paula; but he had cast aside more than one unfinished letter before he could find the right words. He told her that he loved her and her alone; and as his stylus marked the wax he felt, with horror of himself, that in fact his heart was Paula's, and his determination ripened to put an end once for all to his connection with Heliodora, and not allow himself to see Paula again till he had forever cut the tie that bound him to the young widow. The two women went out to see the travellers start, and as they returned to the house, hanging their heads like defeated warriors, in the vestibule they met Katharina and her maid. Martina wanted to detain the little girl, and to persuade her to go up to their rooms with them; but Katharina refused, and appeared to be in a great hurry. She had just come from seeing Anubis, who was in less pain to-day, and who had done his best to tell her what he had overheard. That the flight was to be northwards he was certain; but he had either misunderstood or forgotten the name of the place whither the sisters were bound. His mother and the nurse were dismissed from the room, and then the water-wagtail in her gratitude had bent over him, had raised his pretty face a little, and had given him two such sweet kisses that the poor boy had been quite uneasy. But, when he was alone with his mother once more, he had felt happier and happier, and the remembrance of the transient rapture he had known had alleviated the pain he was suffering on Katharina's account. Katharina, meanwhile, did not go home at once to her mother; on the contrary, she went straight off to the Bishop of Memphis, to whom she divulged all she had learnt with regard to the inhabitants of the convent and the intended rescue. The gentle Plotinus even had been roused to great wrath, and no sooner had she left him than he set out for Fostat to invoke the help of Amru, and--finding him absent--of his Vekeel to enable him to pursue the fugitive Melchite sisters.